Which of the following are layers of fertile soil?

a. potting soil
b. bedrock
c. top soil
d. sub soil
e. riprapich

The correct options are : C and D

Step-by-step explanation:

The fertile soil consists of :

O Horizon : This horizon consists of organic layer and it is the topmost layer of the fertile soil

A Horizon : The soil which is considered to lie in this horizon is known as Top soil. This is the primary layer where plants and organism live.

B Horizon : The soil which is considered to be in this horizon is known as Sub soil. This soil is made up of clay, iron and organic matter.

Hence, among the given options The soils which are the layers of fertile soil are : Top Soil and Sub Soil

Therefore, The correct options are : C and D

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.

hello from mrbilldoesmath!

answer:   x^2 + y^2 = 1024

discussion:

the equation of a circle with center (h,k) and radius "r" is

(x-h)^2 + (y-k)^2 = r^2.

in our case

(x-0)^2 + (y-0) ^2 = 32^2 = 1024

you,

mrb